Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 51, Pages 18216-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja908188f
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Funding
- MEXT [18064017]
- JST, Japan
- JSPS for Young Scientists
- Grants-in-Aid for Scientific Research [18064017] Funding Source: KAKEN
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We applied matrix-assisted laser desorption/ionization (MALDI) for mass analysis of Au clusters stabilized by poly(vinyl-pyrrolidone) (PVP) and discovered a series of magic numbers for Au cluster size: 35 +/- 1, 43 +/- 1, 58 +/- 1, 70 +/- 3, 107 +/- 4, 130 +/- 1, and 150 +/- 2. Magic numbers smaller than similar to 70 agree with those of free Au clusters and can be explained qualitatively by the electronic shell. model. In contrast, magic numbers larger than similar to 100 are obviously different from those of the free clusters. We suggest that the deviation from the electronic shell model is due to perturbation of the electronic and/or geometric structures caused by interaction with PVP.
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